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Copy file name to clipboardExpand all lines: src/content/learn/you-might-not-need-an-effect.md
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@@ -408,7 +408,7 @@ function Game() {
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There are two problems with this code.
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First problem is that it is very inefficient: the component (and its children) have to re-render between each `set` call in the chain. In the example above, in the worst case (`setCard` → render → `setGoldCardCount` → render → `setRound` → render → `setIsGameOver` → render) there are three unnecessary re-renders of the tree below.
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The first problem is that it is very inefficient: the component (and its children) have to re-render between each `set` call in the chain. In the example above, in the worst case (`setCard` → render → `setGoldCardCount` → render → `setRound` → render → `setIsGameOver` → render) there are three unnecessary re-renders of the tree below.
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The second problem is that even if it weren't slow, as your code evolves, you will run into cases where the "chain" you wrote doesn't fit the new requirements. Imagine you are adding a way to step through the history of the game moves. You'd do it by updating each state variable to a value from the past. However, setting the `card` state to a value from the past would trigger the Effect chain again and change the data you're showing. Such code is often rigid and fragile.
Copy file name to clipboardExpand all lines: src/content/reference/react/lazy.md
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@@ -78,7 +78,7 @@ Now that your component's code loads on demand, you also need to specify what sh
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<Suspense fallback={<Loading />}>
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<h2>Preview</h2>
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<MarkdownPreview />
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</Suspense>
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</Suspense>
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```
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In this example, the code for `MarkdownPreview` won't be loaded until you attempt to render it. If `MarkdownPreview` hasn't loaded yet, `Loading` will be shown in its place. Try ticking the checkbox:
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